Internal-combustion engine.



O. W. WEISS.

INTERNAL COMBUSTION ENGINE;

APPLICATION FILED 00T;14,1907. 921,035.

Patented May 11, l q Q9.

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INTERNAL-COMB No. 921,035.. Specification of USTION ENGINE Letters Patent. PatenitedMay 11, 1909.

Application filed October 14, 1907, Serial No. 397,282.

0 all whom it may concern:

Be it known that I, CARL "it". Weiss, a citil zen of the United States, residing in the borough of Manhattan, of the city oi New York, in the State of New York, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the following is a specification, reference being had to the accompanying drawing, forming a part hereof. I

This invention relates to internal combustion engines in which the cylinders are water jacketed. It is generally desirable to regulate the supply of cooling water to the water jacket of such an engine, especially when the steam generated in the water jacket is dis-' charged into the'working cylinder.

The regulation of the water supply has been effected usually, heretofore, by afloat maintain the water in the water jacket at a predetermined level. The float valve and its connections necessarily occupy consider able space, which is objectionable in some installations and are usually notpracticable when the engine is mounted upon a moving base.

It is therefore the object of the present invention to provide means for regulating the supply of water to the water jacket which shall occupy but little space-and shall not be aii'ccted by the position. of the enginecylinder or by movement of the engine. In, accordance with the invention the valve through which the cooling water is admitted i is controlled bya thermostatic device, which is in such relation to the water jacket as to operate to open the valve when the supply of water in the water jacket falls substantially below a predetermined level and to close the valve when the water rises therein substan tially above a predetermined level, but is not chamber and does not permit circulation of water or steam tin-(nigh itself.

The invention Will be more l'ully explained ing drawing, in which the single figure represents, partly in elevation and partly in sec tion, an engine cylinder equipped with the present improvement. The drawing shows a vertical cylinder (L of an internal combustion engine, oi" ordinary construction, the cylinder being water jack eted indicated at b. Suitably secured to pipe It" in the construction shown, a thermostat c and a valve cont-rolled thereby for the purpose of regulating the admission of cooling water to the water jacket. As shown, the

tube d which communicates, as through a suitable jam nut-g The chamber d within the tube or shell 05 is of substantially greater diameter than the rod f so as to ait'ord sub stantial space about the same. At the lower end of the tube or shell (1 is formed a valve "with a sliding fit in the .wall which separates between the valve chamber and such'port. A valve '5, ismounted in the valve chamber d and is held normally to its seat by a spring 5/ in the stufiing box 21.. The stem i. of the when re uired The in ct d*' for the cooling water communicates with the valve chamber (1 at one side of the valve '5 and the cooling water is con,- ducted from the valve chamber, when the valve is open, through a port (1 on the other side of the valve i and by a suitable pipe (I to side thereof.

the upper end of the water jacket, through a to the working cylinder of the engine, as usual in engines of the particular style indicated in the drawing.

When the engine is cold the valve '8 is pulled from its seat by hand until the water jacket is lilled to a predetermined level, with which the position oi" the port 0 corresponds, the valve being then allowed to close. As the engine is heated up and the level of the water is lowered, through loss by evaporation or otherwise, (whether the steam which working cylinder or not) until the port 6 is exposed, steam enters thechamber d of the thermostat and, being at a temperature higher than that of the water, which was cooled by radiation from the walls of the the cylinder wall is a device which comprises,

chamber, there being In circulation through thermostat comprises a radiating" shell or.

port e, with the water jacket at about the level at which it is desired 'to maintain the water in the jacket, a thermostat rod f, and. suitable regulating devices 9 therefor. As shown, the rod is threaded in a sleeve nut g, seated in theshell d and is provided with a chamber 11 into which the rod f projects valve i projects beyond the stuffing box so" as to permit the valve to be opened by hand the water jacket at or near the lower end or Provision is made in the en-' gine shown for the conduction of steam from the chamber (1 from the port e','so that there I is practically no passage of steam or water i may be generated is conducted into the the chamber, causes the rod f to expand and to push the valve 71 from its seat, whereb r more cooling water is admitted to the jacket. As soon as the level of the water in the jacket is raised sulliciently to cover the port 2 the steam in the chamber d is quickly c011- densed through the'reduction of temperature by radiation and the chamber fills with water which is quickly cooled by radiation. The rod 0? is thereby caused to contract sufficiently 'to permit the valve 91 to be closed by its spring 2'. In this manner the level of the water in the waterjackct is maintained always approximatelynear the predetermined. level. Itwill be understood that through the adjusting devices g, justcd so as to cause the valve i to open or close as soon as the conditions are established which require the supply of additional cpoling water or the cutting off of such sup- It will be observed that the interior of the thermostatic device communicates with the Watcrjacket at the water level but has no direct communication with the valve chamber, while'its end is closed so as to permit no circulation through it. This construction and arrangement provides for the maintenance of the water in thejacket at the predetcrmined level-and permits the device to be applied to engines in which the steam generated in the water acket is made use of in the engine.

{from its normal position. 40-

I j of said device 1 jacket at the 1' It will be obvious that the cylinder and the water regulating devices thereon can be arranged in any. convenient position and that the operation of such devices is not ail'ected by any moderate movement of theengine It will also be understood that the thermostatic devices might be of any usual. or suitable construction and arrangement and that the invention is not limited to the precise details of construc tion and arrangement shown and described herein.

I= claimas my invention:

1. The combination of a water. jacketed cylinder, means for supplying cooling water thereto, a valve to controlthe admission of the cooling water and a chambered thermostatic valve controlling device, the chamber communicating with the Water water level, and closed to prevent circulation through it, the passage of fluid directly between the valve chamber the expansion rod d is adcontrolling device comprising a chamberedshell and. an expanding member in said shell and in operative relation to the said valve,

i the chamber of the thern'io static device com.-

mun'ical ing with water jacket at the approximately predetel-mined water level and being closed to prevent circulationthrough it, the passage of liuid directly between the valve chamber and the chamber of the thermostatic device being prevented.

3. The combination of a water jacketed cylinder, means for supplying cooling water thereto, a valve to control the admission of the cooling water and a thermostatic valve controlling device comprising a thermostat shell uniting with the Water acket through a nut at approximately the .predeternLined ievel ol' the water in the jacket and an expansionrod secured at one end in said shell and at the other end bearing against the valve to thrust it from its seat as it expands, the thermostat shell being closed to prevent circulation through it and the passageof fluid directly between the interior of the thermostat shell and the fluid chamber being prevented.

4'. The combination of a water jacketed cylinder, means for supplying cooling water thereto, a spring seated valve to control the admission of the cooling Water and a thermostatic valve controlling device comprising a thermostat shell uniting with the water jacket through a port at approximately the predetermined level of the water in the jacket and an expansion rod secured at one end in said shell and at the other end bearing against the valve to thrust it from its seat as it expands and means to unseat the valve by hand, the thermostat shell being closed to prevent circulation through it and the pasof lluid directly between the interior of the thermostat shell and. the fluid chamber eing prevented.

This specification signed and witnessed this 9th day of October, A. D., 1907.

CARL W. WEISS.

Signed in the presence of LUCIUS E. VARNEY, Annnosn L. OSHEA. 

